Terms and Acronyms

Definition

Description

Auto Attendant

Replaces a live operator and directs callers to the appropriate extensions or voice mailboxes

Automatic Call Distribution

Calls are routed to groups of agents based on the type of information or service required by the caller

Alternate Digit Inversion

Even bits are inverted

A-law

European standard companding algorithm

Automatic Location
Identification

Database to retrieve detailed information on the exact Dispatchable
Location of the Emergency 911 Caller.

Analog Main Board

Provides embedded analog capability with Loop Start, ONS, Music
On Hold, and Paging circuits

Application Management
Center

Mitel's licensing web site

Analog Option Board

Expands on the AMB, providing support for four more ONS phones
and six more LS/CLASS trunks

Application Record ID

A value obtained from the Mitel AMC, used to license software on a
specific MiVoice Business controller.

Automatic Route Selection

Routes outgoing calls based on digits dialed by the caller

Busy Lamp Field

Identifies busy or idle status of circuits assigned to the keys

Basic Rate Interface

ISDN digital I/F carried over one or two twisted-pair copper wires.
Provides two B-channels (voice, at 64 Kbps) and one D-channel
(control, at 16 Kbps)

Channel Associated
Signaling

Signaling information is transmitted over the traffic channels
themselves

Common-Channel Signaling

The signaling information for a number of traffic channels is passed
as messages over one channel on a multi-channel digital link

Cluster Element ID

A digit string used to identify an element in a cluster

Caller Emergency Service
Identification

A number that uniquely identifies the device that dialed 911. The
CESID is fed into the Automatic Location Identification (ALI)
database at the Public Safety Answering Point (PSAP) so that
emergency services can be dispatched to the correct location.

Calling Line Identification

Caller Identification in Europe

Cluster

A grouping of MiVoice Business systems that share common dialing
plans, or common directory information, such as Remote Directory
Numbers with Telephone Directory

Class of Restriction

Limits an Endpoint’s access to specified numbers

Class Of Service

Defines an Endpoint or Trunk's feature and timer options

Calling Party Number

CPN substitution is typically used to show the customer's corporate
name and number for all outgoing calls to the public network.

Compact Switch

Mitel controller type

Compact Switch w/
Integrated Layer 2 Switch

Mitel controller type

Direct Dialing Inward

European DID

Direct Inward Dialing

Trunk from CO to PBX that allows calling directly to inside
extension without operator intervention

Directory Number

Any dialable number

External Hot Desk User

A caller only needs to dial the extension number assigned to the
user and the system automatically rings the user's cell phone, home
phone or another device of choice—including an extension on
another private network or PBX

External
Twinning

A simple two-number Multi-Device Group is created with one
internal prime number and one non-prime EHDU number. This
group can be specified as an External Twinning group and
consume one User license and one EHDU license instead of a
Multi-Device User License.

Foreign Exchange Office

Also known as an Analog Line (Trunk).

Foreign Exchange Station

Also known as an Analog Phone.

Ground Start

Signaling method between two machines, one grounds one side of
the line, the other detects the ground

Loop Start

Usual method of detecting off-hook where one end closes the loop
and the other end detects the resulting current flow

MiVoice Border Gateway

Provides connectivity for remote MiNet and SIP Phones, SIP
Trunking, Call Recording, WebRTC, and Remote Proxy services.

Mitel Communications
Director

The old name for the call control software on the 3300 ICP

Medium Switch - Embedded

Mitel controller type

Station Message Detail
Report/Recording

Provides detailed record of incoming and outgoing calls